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How the excavator works

Hydraulic excavator is mainly composed of engine, hydraulic system, working device, walking device and electrical control. The hydraulic system consists of hydraulic pump, control valve, hydraulic cylinder, hydraulic motor, pipeline, oil tank and so on. The electrical control system includes monitoring panel, engine control system, pump control system, various sensors, solenoid valves and so on.
Hydraulic excavators are generally composed of three parts: a working device, a rotating device and a walking device. According to its structure and use can be divided into, service belt type, tire type, walking type, full hydraulic, semi-hydraulic, rotary, rotary, general, special, articulated, telescopic arm type and many other types. The working device is a device that directly completes the excavation task. It is hinged by three parts, such as boom, bucket rod and bucket. The lifting of boom, the expansion of bucket rod and the rotation of bucket are controlled by reciprocating double acting hydraulic cylinder. In order to meet the needs of different construction operations, hydraulic excavators can be equipped with a variety of working devices, such as digging, lifting, loading, leveling, clamping, dodging, impact hammer and so on
Working equipment.
The rotary and walking device is the body of the hydraulic excavator, and the upper part of the rotary table is provided with a power device and a transmission system. The engine is the power source of the hydraulic excavator, most of which use diesel in a convenient site, and can also be changed to an electric motor.
The hydraulic transmission system transmits the power of the engine to the hydraulic motor, hydraulic cylinder and other executive components through the hydraulic pump to promote the action of the working device, so as to complete various operations.